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Merck
CN

136581

1,5-Diazabicyclo[4.3.0]non-5-ene

98%

Synonym(s):

DBN

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About This Item

Empirical Formula (Hill Notation):
C7H12N2
CAS Number:
Molecular Weight:
124.18
UNSPSC Code:
12352005
NACRES:
NA.22
PubChem Substance ID:
EC Number:
221-087-3
Beilstein/REAXYS Number:
2417
MDL number:
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Product Name

1,5-Diazabicyclo[4.3.0]non-5-ene, 98%

InChI key

SGUVLZREKBPKCE-UHFFFAOYSA-N

InChI

1S/C7H12N2/c1-3-7-8-4-2-6-9(7)5-1/h1-6H2

SMILES string

C1CN=C2CCCN2C1

assay

98%

form

liquid

refractive index

n20/D 1.519 (lit.)

bp

95-98 °C/7.5 mmHg (lit.)

density

1.005 g/mL at 25 °C (lit.)

Quality Level

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Application

1,5-Diazabicyclo[4.3.0]non-5-ene (DBN) can be used as:      
  •   A reagent for the synthesis of β-carbolines from tetrahydro-β-carbolines via dehydrogenative/decarboxylative aromatization.       
  • A nucleophilic organocatalyst in the regioselective C-acylation of pyrroles and indoles by Friedel−Crafts acylation reaction.
  •   A superbase in the formulation of a ternary liquid-liquid phase changing system, along with hexadecane and hexanol, to capture hydrogen sulfide gas.      
  • A base for the preparation of 1H-quinazoline-2,4-diones from 2-aminobenzonitriles using supercritical carbon dioxide as a reactant and a solvent.
  •   A catalyst for the synthesis of benzothiazolones by the reaction between 2-aminothiophenols and CO2 by cyclocarbonylation reaction via C-S bond formation.

General description

DBN is a strong base widely used as a catalyst in organic synthesis to facilitate Michael additions and aldol condensations.

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 3

flash_point_f

201.2 °F - closed cup

flash_point_c

94 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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The simple solvent-free synthesis of 1H-quinazoline-2, 4-diones using supercritical carbon dioxide and catalytic amount of base
Mizuno T, et al.
Tetrahedron Letters, 45(38), 7073-7075 (2004)
Organic base-promoted efficient dehydrogenative/decarboxylative aromatization of tetrahydro-βcarbolines into β-carbolines under air.
Zhao Z, et al.
Tetrahedron Letters, 60(11), 800-804 (2019)
Organic Base-Catalyzed C-S Bond Construction from CO2: A New Route for the Synthesis of Benzothiazolones.
Gao Xiang, et al.
Catalysts, 8(7), 271-271 (2018)
Arinze Akutekwe et al.
IET systems biology, 9(6), 294-302 (2015-11-19)
Accurate and reliable modelling of protein-protein interaction networks for complex diseases such as colorectal cancer can help better understand mechanism of diseases and potentially discover new drugs. Different machine learning methods such as empirical mode decomposition combined with least square
Phase-Change Reversible Absorption of Hydrogen Sulfide by the Superbase 1, 5-Diazabicyclo [4.3. 0] non-5-ene in Organic Solvents.
Xu Z, et al.
Industrial & Engineering Chemistry Research, 58(4), 1701-1710 (2019)

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